On August 19, 2026, Transporte AMBA announced the temporary closure of platforms 5 and 6 at Plaza Constitución station, a major railway hub in Buenos Aires. The Roca Line, one of Argentina's busiest commuter routes, will experience service adjustments, potentially causing delays and platform changes. The closure is due to infrastructure works, with no specified duration. Passengers are advised to check real-time updates, allow extra travel time, and follow official guidance to minimize disruption.

On Wednesday, August 19, 2026, at 1:53 PM, the company Transporte AMBA, which manages the metropolitan transportation system of Buenos Aires, announced via its official X (Twitter) account that platforms 5 and 6 at Plaza Constitución station are temporarily out of service due to infrastructure works. This measure directly affects passengers of the Roca Line, one of the most used railway lines in the country.

What does this closure mean?

Plaza Constitución is the main terminal of the Roca Line and one of the busiest stations in Argentina's railway network. Every day, tens of thousands of passengers arrive and depart from this station to the southern suburbs of Buenos Aires (known as the conurbano bonaerense) and the city center. The closure of these two platforms means that services normally departing from them will be rearranged to other available platforms, which may cause delays, track changes, and increased congestion during peak hours.

The official announcement did not specify the expected duration of the works or the exact scope of the tasks. However, these maintenance projects are essential to ensure the safety and efficiency of the railway system. Once completed, they are expected to improve the overall travel experience for passengers.

Official Notice

Line: Roca
Station: Plaza Constitución
Affected platforms: 5 and 6
Reason: Infrastructure works
Announcement date: 08/19/2026 - 1:53 PM

Recommendations for passengers

  • Check the information boards at the station and the arrival/departure screens.
  • Pay attention to announcements over the loudspeakers and to official updates from Transporte AMBA on social media.
  • Allow extra time for your commute, especially during peak hours (6:00-9:00 AM and 5:00-8:00 PM).
  • Use the SUBE card (electronic payment system) to speed up entry to the platforms.

While the company has not confirmed how long the works will last, it is advisable to follow the official channels for real-time information. For updates, you can visit the official X account: @TransporteAMBA.

These improvements are part of ongoing efforts to modernize the railway infrastructure, which will ultimately benefit thousands of daily commuters. We will keep you informed as new details emerge.